DEBIAN-CVE-2026-11837

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Source
https://security-tracker.debian.org/tracker/CVE-2026-11837
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-11837.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-11837
Upstream
  • CVE-2026-11837
Published
2026-06-10T05:16:38Z
Modified
2026-09-10T08:47:28Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A local privilege escalation vulnerability was found in the ansible.posix authorized_key module. The module's keyfile() function uses os.chown() instead of os.lchown() and opens files without O_NOFOLLOW when managing SSH authorized keys. An unprivileged local user can pre-stage symbolic links in their ~/.ssh directory to redirect file ownership changes to arbitrary system paths when an operator runs the authorized_key task as root, leading to local privilege escalation.

References

Affected packages

Debian:12 / ansible

Package

Name
ansible
Purl
pkg:deb/debian/ansible?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.3.0+dfsg-1
7.7.0+dfsg-1
7.7.0+dfsg-2
7.7.0+dfsg-3
7.7.0+dfsg-3+deb12u1
9.*
9.4.0+dfsg-1
9.5.1+dfsg-1
10.*
10.0.0+dfsg-1
10.0.1+dfsg-1
10.1.0+dfsg-1
10.5.0+dfsg-1
10.5.0+dfsg-2
10.6.0+dfsg-1
11.*
11.1.0+dfsg-1
11.2.0+dfsg-1
12.*
12.0.0~a1+dfsg-1
12.0.0~a2+dfsg-1
12.0.0~a4+dfsg-1
12.0.0~a6+dfsg-1
12.0.0~b1+dfsg-1
12.0.0~b2+dfsg-1
12.0.0~b3+dfsg-1
12.0.0~b5+dfsg-1
12.0.0+dfsg-1
12.2.0+dfsg-1
13.*
13.1.0+dfsg-1
13.4.0+dfsg-1
14.*
14.0.0~a4+dfsg-1
14.0.0+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-11837.json"

Debian:13 / ansible

Package

Name
ansible
Purl
pkg:deb/debian/ansible?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

12.*
12.0.0~a6+dfsg-1
12.0.0~b1+dfsg-1
12.0.0~b2+dfsg-1
12.0.0~b3+dfsg-1
12.0.0~b5+dfsg-0+deb13u1
12.0.0~b5+dfsg-1
12.0.0+dfsg-0+deb13u1
12.0.0+dfsg-1
12.2.0+dfsg-1
13.*
13.1.0+dfsg-1
13.4.0+dfsg-1
14.*
14.0.0~a4+dfsg-1
14.0.0+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-11837.json"

Debian:14 / ansible

Package

Name
ansible
Purl
pkg:deb/debian/ansible?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

12.*
12.0.0~a6+dfsg-1
12.0.0~b1+dfsg-1
12.0.0~b2+dfsg-1
12.0.0~b3+dfsg-1
12.0.0~b5+dfsg-1
12.0.0+dfsg-1
12.2.0+dfsg-1
13.*
13.1.0+dfsg-1
13.4.0+dfsg-1
14.*
14.0.0~a4+dfsg-1
14.0.0+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-11837.json"